What was found
FORWARD CARGO PIT LEFT TRANSITION PANEL BETWEEN STATION 500K TO 500L HAS CORROSION (MARKED IN RED). GROUNDED - YES. REMOVED CORROSION AT STA 500K-500L ORIG THICKNESS .040 REMOVED .011 REMAINING .029 FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-00-53 REMOVED DAMAGED ZEE CHANEL SIDE PLATE PER B737-900ER SRM 51-10-02 FABRICATED REPAIR AND SPLICE PER B737-900 ER SRM 53-00-53-2R-5 RESTORED PROTECTIVE TREATMENT PER B737-900 ER 51-20-07 AND SOPM 20-41-02 INSTALLED REPAIR AND SPLICE PER B737-900 ER SRM 53-0053-2R-5.